28201965

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{170921}}^1$

素因数の和:170940

約数の個数: 16

約数和(自身を含む): 49225536

約数和(自身を除く): 21023571

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 170921, 512763, 854605, 1880131, 2563815, 5640393, 9400655, 28201965]

約数ペア:

[(1, 28201965), (3, 9400655), (5, 5640393), (11, 2563815), (15, 1880131), (33, 854605), (55, 512763), (165, 170921)]